- lunacy, madness, insaneness - obsolete terms for legal insanity
--1 is a kind of insanity
- folly, foolery, tomfoolery, craziness, lunacy, indulgence - foolish or senseless behavior
--2 is a kind of play, frolic, romp, gambol, caper
--2 has particulars:meshugaas, mishegaas, mishegoss; buffoonery, clowning, frivolity, harlequinade, prank